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Сумма углов треугольника 180 градусов
Сумма углов выпуклого четырехугольника 360 градусов
Отрезок, соединяющий вершину треугольника с серединой противоположной стороны Медиана
Перпендикуляр, опущенный из вершины треугольника на прямую, содержащую противоположную сторону Высота
Отрезок, соединяющий противоположные вершины четырехугольника Диагональ
Отрезок, соединяющий вершину треугольника с точкой противоположной стороны и делящий угол треугольника пополам Биссектриса
Величина угла правильного четырехугольника 90 градусов
Величина угла правильного треугольника 60 градусов
Сторона прямоугольного треугольника, лежащая напротив прямого угла гипотенуза
Сторона прямоугольного треугольника, лежащая напротив острого угла катет
Created by: belolga9
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